[PATCH v2 1/4] dt-bindings: renesas,rcar-dmac: Add r8a779a0 support

Geert Uytterhoeven
2021-01-25T14:38:55Z

Document the compatible value for the Direct Memory Access Controller
blocks in the Renesas R-Car V3U (R8A779A0) SoC.

The most visible difference with DMAC blocks on other R-Car SoCs is the
move of the per-channel registers to a separate register block.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
---
v2:
- Add Reviewed-by.
---
.../bindings/dma/renesas,rcar-dmac.yaml | 76 ++++++++++++-------
1 file changed, 48 insertions(+), 28 deletions(-)

diff --git a/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml b/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml
index c07eb6f2fc8d2f12..7f2a54bc732d3a19 100644
--- a/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml
+++ b/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml
@@ -14,34 +14,37 @@ allOf:

properties:
compatible:
- items:
- - enum:
- - renesas,dmac-r8a7742 # RZ/G1H
- - renesas,dmac-r8a7743 # RZ/G1M
- - renesas,dmac-r8a7744 # RZ/G1N
- - renesas,dmac-r8a7745 # RZ/G1E
- - renesas,dmac-r8a77470 # RZ/G1C
- - renesas,dmac-r8a774a1 # RZ/G2M
- - renesas,dmac-r8a774b1 # RZ/G2N
- - renesas,dmac-r8a774c0 # RZ/G2E
- - renesas,dmac-r8a774e1 # RZ/G2H
- - renesas,dmac-r8a7790 # R-Car H2
- - renesas,dmac-r8a7791 # R-Car M2-W
- - renesas,dmac-r8a7792 # R-Car V2H
- - renesas,dmac-r8a7793 # R-Car M2-N
- - renesas,dmac-r8a7794 # R-Car E2
- - renesas,dmac-r8a7795 # R-Car H3
- - renesas,dmac-r8a7796 # R-Car M3-W
- - renesas,dmac-r8a77961 # R-Car M3-W+
- - renesas,dmac-r8a77965 # R-Car M3-N
- - renesas,dmac-r8a77970 # R-Car V3M
- - renesas,dmac-r8a77980 # R-Car V3H
- - renesas,dmac-r8a77990 # R-Car E3
- - renesas,dmac-r8a77995 # R-Car D3
- - const: renesas,rcar-dmac
-
- reg:
- maxItems: 1
+ oneOf:
+ - items:
+ - enum:
+ - renesas,dmac-r8a7742 # RZ/G1H
+ - renesas,dmac-r8a7743 # RZ/G1M
+ - renesas,dmac-r8a7744 # RZ/G1N
+ - renesas,dmac-r8a7745 # RZ/G1E
+ - renesas,dmac-r8a77470 # RZ/G1C
+ - renesas,dmac-r8a774a1 # RZ/G2M
+ - renesas,dmac-r8a774b1 # RZ/G2N
+ - renesas,dmac-r8a774c0 # RZ/G2E
+ - renesas,dmac-r8a774e1 # RZ/G2H
+ - renesas,dmac-r8a7790 # R-Car H2
+ - renesas,dmac-r8a7791 # R-Car M2-W
+ - renesas,dmac-r8a7792 # R-Car V2H
+ - renesas,dmac-r8a7793 # R-Car M2-N
+ - renesas,dmac-r8a7794 # R-Car E2
+ - renesas,dmac-r8a7795 # R-Car H3
+ - renesas,dmac-r8a7796 # R-Car M3-W
+ - renesas,dmac-r8a77961 # R-Car M3-W+
+ - renesas,dmac-r8a77965 # R-Car M3-N
+ - renesas,dmac-r8a77970 # R-Car V3M
+ - renesas,dmac-r8a77980 # R-Car V3H
+ - renesas,dmac-r8a77990 # R-Car E3
+ - renesas,dmac-r8a77995 # R-Car D3
+ - const: renesas,rcar-dmac
+
+ - items:
+ - const: renesas,dmac-r8a779a0 # R-Car V3U
+
+ reg: true

interrupts:
minItems: 9
@@ -110,6 +113,23 @@ required:
- power-domains
- resets

+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,dmac-r8a779a0
+then:
+ properties:
+ reg:
+ items:
+ - description: Base register block
+ - description: Channel register block
+else:
+ properties:
+ reg:
+ maxItems: 1
+
additionalProperties: false

examples:
--
2.25.1